Living things that use energy

Nearly everything eats sunshine – or eats something else that ate sunshine. The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter.

Explanation:

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living things that use energy:

~Producers, such as plants and algae, use energy from sunlight to make food energy by combining carbon dioxide and water to form organic matter

Hope this helped you- have a good day bro cya)

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.